Brady Quinn will miss the Kansas City Chiefs’ Thursday Night Football matchup against the San Diego Chargers with a concussion, according to the Chicago Tribune. Matt Cassel will get another chance to secure the team’s starting QB role after losing the job to Quinn a few weeks ago.

Rashard Mendenhall, RB, Pittsburgh Steelers

Status: Out

Even though Rashard Mendenhall was able to practice earlier in the week, he will not play this week against the New York Giants, according to Mike Bires of Times Online.

Steelers won't have RBs Mendenhall & Dwyer Sunday vs. NY. They are officially listed as doubtful, but they will not play. #steelers

The fact that Johnathan Dwyer is also out is very bad news for the Steelers. The backfield has been devastated by injuries this season and it has hurt the team's ability to get a consistent running game.

Nobody wants me to do better than me. So definitely, with this procedure, it's definitely given me a lot of hope and a different mindset. I feel like I was stagnant. That's why I'm very excited to have been able to go clean it out and being optimistic about things…Oh, I'm definitely, definitely (playing). I'm not missing anything. It uplifts me tremendously.

Jordy Nelson, WR, Green Bay Packers

Status: Active

Thought to be a relatively minor injury, Green Back Packers wide receiver Jordy Nelson missed his third straight day of practice on Friday but is active for Sunday's game, per the team's inactive list.

DeMarco Murray, RB, Dallas Cowboys

Status: Out

Though he's reportedly making progress, Dallas Cowboys running back DeMarco Murray has been ruled out of Sunday's game against the Atlanta Falcons, per ESPN's Calvin Watkins:

Dallas Cowboys running back DeMarco Murray is making progress in his rehab from a sprained foot, but he will not play Sunday night against the unbeaten Atlanta Falcons.

Murray said he did some running this week and has a target date for a return, but won't reveal it. He said Friday that missing his third straight game is "a little frustrating."